Lg display co., ltd. (20240260310). DISPLAY APPARATUS
DISPLAY APPARATUS
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DISPLAY APPARATUS
This abstract first appeared for US patent application 20240260310 titled 'DISPLAY APPARATUS
Original Abstract Submitted
a display apparatus includes a display panel configured to display an image and a film actuator configured to vibrate the display panel. the film actuator may include a plurality of vibration generating devices configured with a composite film. the plurality of vibration generating devices may be configured to have different expansion coefficients. the composite film may include a plurality of vibration portions configured to have a piezoelectric characteristic and a plurality of expansion portions configured to have flexibility and overlap with the plurality of vibration portions.